proj source package in Nile V2.0
libproj-dev: Cartographic projection library (development files)
libproj15: Cartographic projection library
libproj15-dbgsym: debug symbols for libproj15
proj-bin: Cartographic projection library (tools)
proj-bin-dbgsym: debug symbols for proj-bin
proj-data: Cartographic projection filter and library (datum package)